Broom-banding machine.



J. s. MoGHESNEY. BROOM BANDINGMAGHINE.

APPLICATION I'ILED DEC. 9, 1908. I

1,014,887, Patented Jan. 16, 1912.

2 SHBBTS-SHEET l.

WITNESSES:

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J. S. MOOHESNEY.

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JOHN SHERMAN llIoCI-IESNEY, OF CHICAGO, ILLINOIS.

BROOM-BANDING MACHINE.

To all whom it may concern:

Be it known that I, JOHN SHERMAN Mo- CHEsNEY, citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented a certain new and useful Improvement in Broom-Banding Machines, of which the following is a full, clear, concise, andexact description, reference being had to the accompanying drawings,forming a part of this specification.

My invention relates to the manufacture of brooms, and has for itsobject the provision of a broom banding machine whereby I am enabled toemploy previously formed bands that may be put in place about the strawbody or waist of a broom, the machine of my invention preferably alsobeing of service in stapling the bands into engagement with the broomstraw.

I will explain my invention more fully by a description of the preferredembodiment thereof, shown in the accompanying drawings, to whichembodiment of my invention, however, I do not wish to be limited.

In the drawings-Figure 1 is a rear elevation of a machine constructed inaccord- .ance with the preferred embodiment of my invention, certainparts being broken away more clearly to reveal certain details ofconstruction. Fig. 2 is a side elevation, partially in section, of thestructure shown in Fig. 1. Fig. 3 is a sectional elevation of a portionof the die structure entering into the machine of my invention, the diesbeing in separated relation preparatory to receiving the continuousbands and the broom about which the bands are to be disposed. Fig. 4 isan end view of the parts as they appear in Fig. 3, in the direction ofarrow 4: of Fig. 3. Fig. 5 is a view of the mechanism illustrated inFig. 4, with the parts rearranged. Fig. 6 is a perspective view of oneof the dies, the two dies being preferably similar in formation. Fig. 7is a perspective view of the principal portion of the reciprocatingelement provided in association with the upper die, this element beingturned bottom-sideup for purpose of illustration. Fig. 8 is a sectionalview of a part of the structure shown in Fig. 5 on line 8, 8. Fig. 9 isa view of one previously formed band that may be employed in connectionwith the invention.

Specification of Letters Patent.

Application filed December 9, 1908.

mama Jan. 16,1912.

Serial N0. 466,600.

Like parts are indicated by similar characters of reference throughoutthe different figures.

The base a of the machine carries the rotating operating shaft 7) d1iven by any suitable means which need not be illustrated nor described,and which shaft 6 is in cam or crank connection with a pitman c that isarticulated to the vertically moving plunger (Z, which plunger carries asuitable baseplate 6 upon which the lower die f maybe suitably secured.As the shaft Z) is rotated, the plunger (Z is reciprocated, whereby thelower die plate f is also reciprocated. The base a of the machine isdesirably provided with two rods g that are threaded at their upper endsand there surrounded by nuts g which are interposed between thebifurcated extensions that encompass the rods 9 and are free to movealong the same. The arms 9 constitute extensions of a block it whichsupports upon its under surface the upper die plate i which is locatedin suitable registering relation with the lower die plate f, these dieplates being more fully hereinafter described. By means of the nuts gthe proximity with which the die f may approach the die 2' is regulated,and by means of one or the other of said nuts 9 the plane of the die 2'is properly adjusted with respect to the plane of the die f. Each ofthese dies is preferably constructed as illustrated most clearly inFigs. 3, 5 and 6, Fig. 6 being the clearest of these three views.

It has hitherto been the common practice to wind wire about the waistsor bodies of brooms, but by means of my invention I am enabled to employpreviously formed bands, which are desirably elliptical in shape, asindicated in Fig. 9, the bands which I prefer to employ being formed ofiron rod that is turned into the desired shape and which has its freeends welded toform the butt-weld indicated at 70, Fig. 9. I do not wishto be limited, however, to the use of bands that are initially ofelliptical shape, nor to bands that are previously formed in the mannerdescribed. I desirably dispose two bands about the waist of each broomand when two bands are thus disposed about the broom waists, I provideeach die with two channels Z on that extend transversely to the lengthof the broom and which are of a width suited to the thickness of themetal of the bands, the faces of the dies being inclined at n 0 towardthe grooves Z m, so that when the dies are in a separated relation, thepreviously formed bands may readily be guided into a position, as indicated in Fig. 3. After the bands have been positioned, the lower die ismoved toward the upper die, so that the partially flattened bands arethereafter flattened to the full extent desired so as to grip the broomabout its waist, the grooves Z an more fully receiving the bands whenthus flattened. It is preferable to provide means for preventing theslippage of the bands (p) along the broom bodies, to which end Ipreferably pass staples Q through the broom body and into clenchingengagement with the bands 2) and with neighboring broom straws, so as tosecurely hold the bands p from being longitudinally moved with respectto the broom. I find that one staple g per band is sufficient. Thesestaples are preferably not only applied by the machine of my invention,but are also desirably formed thereby, to which end I employ two bobbinshafts 1" supported upon forked brackets s that are in threadedengagement with the rods 9. Each bobbin shaft supports a bobbin of wire,the wire being led from the bobbins between presser wheels 6 throughapertures u in the block it and the die 2' carried beneath the same,these apertures it being located in planes to the rear of the planesthat are occupied by the bands 79 when in place within the dies '5 andf. Preferably after compression of the bands 77 has commenced, the wire,which was previously fed through the apertures u to the fullest extent,is sheared off as a result of the reciprocating movement of the cuttera), which reciprocating movement is brought about by means of themechanism illustrated most clearlyin Figs. 1 and 2, where I haveillustrated the rear end of the cutting element 0 in pin and slotengagement with the bifurcated end of a bell-crank device 41 having athreaded extension passing through the base-plate e, the threadedelement 12 having nuts 0 2: whereby the said base-plate is caused toactuate the bellcrank structure 01 in one direction when the die f iselevated, in order to shear the wire passing through the apertures 10and in the reverse direction when the die f is lowered to withdraw thecutting element '0, the nuts o o being sutliciently separated to permitlost motion that will be sufficient to permit of proper relativemovement between the dies before the cutter o is actuated. The cutter 7)not only shears the Wire that is to form the binding staples, but alsodesirably takes part in clenching the staples about the bands p and theneighboring broom straw, the upper portions of the staples 9 being thusbrought into clenching engagement by the element o. To this end, theelement 1; is desirably shaped as indicated in Fig. 7,

which shows said element reversed so as to reveal the bottom thereof,the forward or approaching end of the cutter o having curve portions toengage and inturn the upper ends of the staple wire preparatory tostapling engagement with the broom strawl/Vhen the lower die f has beenmoved well up, the pockets to in the elemento are caused to engage andpress the upper portions of the staples 9 into the shapes illustrated inFig. 5, further upward movement of the die f thereafter following inorder to properly compress the bands 29. I desirably upturn the lowerends of the staples g by a structural element at which has pockets :0that are similar in function and located in approximate alinement withthe pockets w. The elements Q) 00 move in unison longitudinally of thedies and are reciprocated toward and from each other relatively, theelement at having a bell-crank structure y that affords aninter-relation between the block it and the element a which is similarto the inter-relation afforded by the bellcrank structure '0 between thebase 6 and the element 1;. The element x has a recess .2 in alinementwith the aperture 42 and a shoulder 2 to determine the extent to whichthe wires are fed through the apertures u downwardly.

WVhere the bands have the enlargements formed by butt-welding, asindicated in Fig. 9, I desirably provide clearance in at least one, andpreferably'in both, of the dies f and 2', as indicated most clearly inFig. 6 at 2 which clearance permits the bands to be located in place, asone or the other of said clearances is adapted to accommodate theenlargement is, permitting the balance of the band properly to beseated. WVhere the elements 1) and 0a are employed, they are disposedand adapted to reciprocate within these clearances 2 in directionsparallel to the direction in which the broom is fed into the machine,the portions of the clearances .2 that are required for the enlargements70 being provided in the elements o and w by means of the slopes m insaid elements 4) and 00.

It will be observed that the cutting element 11 cuts the wires passingthrough the apertures u on the bias, whereby said wires are sharpened topermit them to be fed through the mass of broom straws in the body orwaist of the broom. Any suitable mechanism may be employed for feedingthe wire through the apertures 14. v

The broom is passed between the dies, handle first, and inasmuch as thebands p are previously in position, the handle and broom waist of eachbroom is passed through said bands, which are not shifted from theirvertical positions owing to the engagement of said bands with theshoulders 2 as clearly illustrated in Figs. 3 and 6.

The extent to which the broom may be passed through the bands is limitedby the stop 2 adjustably secured upon a rod 2 fixedly supported withrespect to the die f, the stop 2 serving to engage the end of the broomhandle.

I have not deemed it necessary to clearly illustrate nor describe themechanism by which the movement of the die f is controlled, as suchmechanism is so well known to those familiar with machine presses.

While I have shown previously formed bands which are endless orcontinuous, I do not wish to be limited to bands of suchcharacteristics, as it is obvious that the bands need not be continuousif the metal of which they are formed is sufiiciently rigid.

It will be seen that I have provided a machine including one die, acompanion die, mechanism for moving one of said dies to ward the other,said dies being adapted to compress a band about the waist of a broompreviously passed through the hand, there being means for holding theband in position to enable the dies to act thereupon, and staplingmechanism for stapling the band and broom straw together, said staplingmechanism including two members slidable substantially parallel to thedirection in which the broom is fed and having relative motion similarto the relative movement between the dies and serving to turn in thestaple wire when relatively approached.

While I have herein shown and particularly described the preferredembodiment of my invention, I do not wish to be limited to the preciseconstruction shown, as changes may readily be made without departingfrom the spirit of the invention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent the following 1. A machine of the character describedincluding one die, a companion die, mechanism for moving one of saiddies toward the other, said dies being provided with formations forholding previously formed bands into position, said dies being adaptedto compress a band about the waist of a broom previously passed into theband, and stapling mechanism for stapling the band and broom strawtogether, said stapling mechanism including two members slidablesubstantially parallel in the direct-ion in which the broom is fed andhaving relative motion similar to the relative movement between the diesand serving to turn in the staple wire when relatively approached.

2. A machine of the character described including one die, a companiondie, mecha nism for moving one of said dies toward the other, said diesbeing provided with formations for holding previously formed bands inposition, said dies being adapted to compress a band about the waist ofa broom previously passed into the band, stapling mechanism for staplingthe band and broom straw together, said stapling mechanism including twomembers slidable substantially parallel to the direction in which thebroom is fed and having relative motion similar to the relative movementbetween the dies and serving to turn in the staple wire when relativelyapproached, one of said members being adapted to shear wire that is toform the staples, and mechanism for feeding said wire.

3. A machine of the character described including one die, a companiondie, mechanism for moving one of said dies toward the other, said diesbeing provided with formations for holding previously formed bands inposition, said dies being adapted to compress a band about the waist ofa broom previously passed into the band, stapling mechanism for staplingthe band and broom straw together, said stapling mechanism including twomembers slidable substantially parallel to the direction in which thebroom is fed and having relative motion similar to the relative movementbetween the dies and serving to turn in the staple wire when relativelyapproached, one of said members being adapted to shear wire that is toform the staples. and mechanism for feeding said wire, said cuttingmechanism acting to cut the wire on the bias, whereby it may be fedthrough the broom straw preparatory to the stapling operation.

4. A machine of the character described including two members adapted tohold a previously formed band in position and provided withband-receiving grooves in their opposed faces, mechanism for effectingrelative motion between said members, whereby said band may becompressed about a broom waist previously passed thereinto, saidmechanism permitting the broom handle to be passed between said membersand through the band in order that the waist of the broom may be passedinto the band, and stapling mechanism operable by the member actuatingmechanism for stapling the band and broom straw together.

5. A machine of the character described including two members adapted tohold a previously formed band in position and provided withbandreceiving grooves in their opposed faces, one of said grooves beingenlarged to receive the band enlargement formed in the band structure inthe process of making the same, mechanism for effecting relative motionbetween said members, whereby said band may be compressed about a broomwaist previously passed thereinto, said mechanism permitting the broomhandle to be passed between said members and through the band in orderthat the waist of the broom may be passed into the band, and staplingmechanism operable by the member actuating mechanism for stapling theband and broom straw together.

6. A machine of the character described including two members adapted tohold a previously formed band in position, mechanism for effectingrelative motion between said members, whereby said band may becompressed about a broom waist previously passed thereinto, saidmechanism permitting the broom handle to be passed between said membersand through the band in order that the waist of the broom may be passedinto the band, and a stop for engaging the broom handle and limiting theextent to which the broom may be passed through the band.

In witness whereof, I hereunto subscribe my name this 18th day ofNovember A. D. 1908.

JOHN SHERMAN MCOHESNEY.

Witnesses:

L. G. STROH, G. L. GRAGG.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents- Washington, D. G.

